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Mathematics 8 Online
OpenStudy (anonymous):

To calculate the correct results from the experiment, Tessa needs to know the exact amount of salt used in the experiment. Before performing the experiment she weighed out the salt in a plastic weighing boat. The weighing boat and salt weighed 75 grams. If the weighing boat had an empty weight of 1.42 grams, then how much salt was used in the experiment? 73.48 grams 73.58 grams 73.59 grams 76.42 grams

OpenStudy (anonymous):

@timo86m

OpenStudy (rc94):

73.58 grams

OpenStudy (anonymous):

@uri

OpenStudy (anonymous):

thx

OpenStudy (uri):

@RC94 Well explain them how?

OpenStudy (rc94):

It's just subtraction? How can I explain subtraction? I guess you can imagine it as 75.00 - 1.42 and "forget" the decimal point, do 7500 - 142 = 7358 then put it back in so it's 73.58

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